59,800 questions
Advice
1
vote
2
replies
55
views
Seeking Advice: True Zero-Downtime Redis Sentinel on Kubernetes (Node.js)
looking for some architectural advice on handling Redis failovers gracefully under high traffic.
Our Setup:
Node.js backend using ioredis
Redis Sentinel (Bitnami Helm Chart) running on AWS EKS (...
- reputation score 1
Score of -3
0 answers
85 views
How can a K3s cluster survive server IP address changes without rebuilding the cluster? [closed]
Body:
I'm testing different approaches for relocating an on-premises K3s cluster between networks where the server IP addresses change (for example, moving hardware from one network to another).
...
- reputation score 13
Score of 0
0 answers
29 views
Flux CD does not seem to recognize environment variables injected by the Kubernetes deployment manifest
I have a simple Kubernetes app with a Helm Chart as follows.
deployment.yaml
env:
{{- toYaml .Values.env | nindent 12 }}
values.yaml
env:
- name: QUARKUS_HTTP_HOST
value: 0.0.0.0
- name: ...
- reputation score 563
Best practices
0
votes
0
replies
48
views
GKE: Does Node Pool Autoscaler totalminNodeCount parameter function when Cluster Autoscaler is disabled?
I have a GKE cluster with the following setup:
Cluster: 3 nodes
Cluster Autoscaler: DISABLED
Node Pool Autoscaling: ENABLED
Node Pool totalminNodeCount setting: 1
Cloud Scheduler: configured for ...
- reputation score 1
Score of 0
0 answers
68 views
FastAPI Docker container ignores SIGTERM — pod takes 30s to terminate and lifespan shutdown never runs
I containerized a FastAPI service (myapp, Python 3.12, port 8080) and deploy it to a local k3d cluster. The app works, but every kubectl delete pod / rolling update takes ~30 seconds, and my FastAPI ...
- reputation score 19
Advice
2
votes
0
replies
47
views
Exposing user files inside devcontainer (ran as Administrator)
I'm running into trouble mounting/copying a file from my host system into a container. I feel like there should be an elegant way of doing it.
The Problem:
I have a devcontainer that I am running on ...
- reputation score 75
Advice
1
vote
3
replies
63
views
Since KYAML is a subset of YAML why does it need to be "enabled"?
According to https://kubernetes.io/docs/reference/encodings/kyaml/ KYAML is "a safer and less ambiguous subset of YAML". The page goes on to say KYAML was "initially introduced in ...
- reputation score 7845
Tooling
0
votes
2
replies
55
views
KM Worker vs KM Master node [ is I can have pods in KM Master ? ]
I am newbie to Kubernetes.
Upto what I know a Virtual Machine or a actual Computer Machine can be configured as Kubernetes node and node can have several pod
Being said we can configure Kubernetes ...
- reputation score 823
Best practices
0
votes
2
replies
53
views
Can we control the total resouces used by Spark with its Kubernetes operator?
We are currently planning a migration to Kubernetes with our Spark applications.
Until this point we used a standalone cluster where we submitted multiple applications, with dynamic resource ...
- reputation score 1506
Score of -2
2 answers
167 views
helm create secret from parsing external ini file
I need to create secret from external INI file content by parsing the keys and values from the file without the section. For example, with the following secret file,
apiVersion: v1
kind: Secret
type: ...
- reputation score 4374
Best practices
0
votes
6
replies
127
views
Spark Structured Streaming from many S3 buckets with different customer credentials and schemas
have a Spark-on-Kubernetes ingestion use case and I’m trying to understand the right design for Spark Structured Streaming.
Each customer has their own S3 bucket and their own credentials. Inside each ...
- reputation score 48
Score of -3
1 answer
100 views
Kubernetes + Longhorn: New worker node joined but workloads not scheduled (only system pods running) [closed]
I have a Kubernetes cluster using Longhorn for storage. I recently joined a new worker node to the cluster, and all prerequisites for Longhorn appear to be satisfied on that node.
However, I’m facing ...
- reputation score 1
Best practices
0
votes
2
replies
125
views
Spring gRPC multiple channels in Kubernetes
I am looking for best practices on how to implement horizontal architecture with the latest Spring gRPC [1] in Kubernetes.
In my Kubernetes cluster, I have one main service, which connects to multiple ...
- reputation score 71
Score of 0
0 answers
118 views
AKS deployment consistently fail due to readiness probe status code 500
While we are doing the recent deployment testing on one of our .NET code implementation over a web application, we found that the readiness probe consistently starts to fail with code 500.
Here is the ...
- reputation score 59
Best practices
1
vote
1
replies
127
views
Docker Project: A to Z process step by step
Would you recommend any free complete project has been created using docker which I can practice to learn in detail? I looked various sources but found limited resources like half or magnetic part of ...
- reputation score 1